&n*embe^,,

Francisco 94 ii any s_igns_ o_f blue or brown stain show. They feel the ch-emical is helpful in preventing serious stain. '

.

No_ one present k-new of a new drying process developed by Manreso, Inc. of Reno, Nevada, and reported brieflv in the July issue of The Lumberman.

Two members described their new kilns: Hughes Brothers.Lumber Company, Foresthill, have 2 new slngle track, 40 board foot capacity, Moore kilns. Loring Lum6er Company, Bu-rnel,_is just completing 8 Medford Machinery Company kilns. They are all double track, but of different lengths as follows:- 4-54 feet long, 3-86 feet long, 1-110 feet long.

Lyle Winkle gave a brief talk on the cause and efiect of drying stresses, including the following points : Residual stresses (casehardening) are a normal development during air-drying and kiln drying. If not removed, there mav bE "working" (cupping) of remanufactured lumber. A ielatively short conditioning treatment is required if a mild drying schedule is used, while a longer conditioning treatment is needed if a severe drying ichedule is usJd. The faster drying with the severe schedule may result in a shorter over_-all drying time, however. Drying stresses can be relieved by a final co:rditioning treatmeniof high temperature and humidity. (References: Western pine Associa- tion Seasoning Manual, Chapter 8; U.S. Forest products Laboratory Technical Note 2i3; Report No. D1269-9).

Respectfully submitted, HARVEY H. SMITH.

3:n:n'rft:?iH";,, K'n crub Winfree a fyt-" ro W"l"ut Greek

Henry Winfr,ee, owner of Winfree & Tynan in San Franc_isco, has just finished moving his office nearer his Walnut Creek home. The former San Francisco wholesale lumber firm is now located at 2717 North Main St., Walnut Creekphone YEllowstone 5-1400.

Commerciol Stondqrd Revised for Prefinished Woll Panels

A recommended revision of Commercial Standard CS17G 51, Pre-finished Wall Panels, has been released by the Commodity Standards Division, Office of Technical Services, U. S. Department of Commerce, for industry consideration and acceptance., It establishes definite criteria of physical requirements which should be possessed by the base material and the finish coating. It also presents a basis on which performance guarantees may be made by the manufacturer. This recommended revision was originally proposed by a manufacturer and has been adiusted several times to cbnform as nearly as practicable io suggestions of interested organizations. Where possible the requirements have been upgraded to provide a more satisfactory product.

__Li-ryjted copies of the recommended-rivision, designated T5-5396, are available on request from the Commoditv Standards Division, U. S. Depaitment of Commerce, Wastiington 25, D. C.

Wholescrler Group to Produce Film

Production of an educational motion picture dramatizing the true role of the wholesaler in the nation's econor.ny il announced by the National Association of Wholesalers which represents over 8,000 .wholesalers in 15 national trade_-groups. The l6mm film, l'The Devil to Pay,', will run 20 minutes. Buster Keaton, deadpan star of'- motion pictures, is being considered for the leading role. The film is being prepared specifically for showing on pub- lic service television time and for presentation before service clubs, religious, fraternal and business groups. Prints will be available to all wholesalers and other interested groups at $100 per copy from the National Association of Wholesalers, 1001 Connecticut Avenue, N. W., Washington 6, D. C.